Improvement in steam-engine connections



N.PETERS, FHOTO-LIYHOGRAPHER, WASHINGYON. D. C.

com smc @anni @time LEONARD PHLEGER, or PILADELPHIA, PnvasrmaNIA;A

.Letter/s' :Patent No. 103,649,dated Mag/31, 1870 mztcdclcrl May 19, 1870.

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' The Schedule referred to these Letters Patent nd making part of the same.

To all whom it nuty conce/ra:

Be it 4known that I, LEONARD PHLEGER, of the city and county of Philadelphia and State of Pennsylvania, have invented a new and useful Improvement in Steam-Engines; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the accompanying drawing and to the letters of reference lmarked thereon.

The object of my invention is to construct a steamengine of acheap, simple, and compact form, for either land or marine purposes, and dispensing with sliding surfaces in the cross-head and guides, whereby the friction of the moving parts is greatly reduced, o lthat increased power is gaintd with a saving of The improvement consists in connecting with the piston-rod of the steam-cylinder a cross-head, made in the form of a circular ring, and provided with an arm or projection, and working on friction-wheels placed underneath the cross-head, and on the upper and lower edges of the arm, near the end, and on the opposite sides 'of the arm or projection are pivoted two connecting-rods, which extend back toward the steam-cylinder, andare attached to a crank-pin secured in a ily-wheel, the pin projecting out and working in the open space of the cross-head, as it' (the cross-head) is reciplocated.v

'lhe bed-plate is made with a side extending up, soas to form a bearing for the main shaft, and a support for two of the friction-wheels.

Figure l is a side elevation of ,my improvement in steam-engines.

Figure 2 is a. plan view of same.

The cross-head C, made in the form of a circular lring, and provided with an arm or projection, A, is

connected to the piston-rod R by means of a boss, b, cast or formed on the rim, through which is passed and secured the end of the piston-rod. The said crosshead C is elevated, and 4works on friction-wheels W', W1, and W, and is adjusted so that the center of it and the arm A is on a horizontal line drawn through the center of the cylinder B.

The wheel W' is placed directly under theccnter of the cross-head, where it is centered in a pedestal, I, secured to the bed-plate D, and a portion of the lower edge of the cross-head made perfectly straight and tted in a groove formed on the face -of the wheel.

The upper and lower edges of the arm A it in and work in grooves formed on the face of the wheels Wl-and W.

These wheels turn on studs S and S', so that the cross-head is carried in a' direct line with the pistonrod.

Centered on the opposite sides and near the outer end of the arm A, by means of the pin N, are two connecting-rods, J and J', the opposite ends of which extend back toward the steam-cylinder, and are secured together and work on a crank-pin, K, secured inthe fly-wheel I-I, at a proper distance from the center of the driving-shaft T, so as tfform a length of crank suitable to the size of the steam-cylinder. The crank-piu K, during its revolutions,describesv a circle in the open4 space of the cross-head, without coming in contact with it.

The bed-plate D is cast'in one piece, with a box, X, for supporting the cylinder B, anda side or framing, F,.which extends up, and has formed on its upper edge a bearing, E, and an uprght,U, in which a vertical slot is formed for securing and adjusting the studs S and S' ofthe wheels Wl and W2. On the back part of the bed-plate, lwhich extends out the proper distance, is a pedestal, on the upper end ot which is formed a bearing, E.

Under the center of the bearings E and E', and on one side of the upright U, are -formed ribs, for supporting' andA giving additional stiffness to the said parts.

The main shaft 'l .is placed and revolves in thev the engine delivered on a parallel line o n the n-and' out strokeof the piston, and the rolling motion of the wheels Wl and \V2. on the upper and lower edges ofthe arm A diminishes the friction, so that increased power is gained. t

lheywheel W placed` under the center of the crosshead, gives additional support to it, and prevents the wearing away (caused by the weight of the crosshead bearing on .the piston and rod) of the lower side ofthe cylinder, stuiiing-box, and gland. The brasses in the connecting-rods J and J can be adjusted by means of set-screws inserted in the ends of the rods.

I do not claim the friction-wheels W, VV, and IW, as I am aware that they have been known and used for purposes similar to what I have applied them to,

and intended to produce the same result.

s Having thus described my invention, its construction and operation,

- set forth.

3. The within-described steam-engine, composed of the parts herein set forth, all combined and operating as specified.

In testimony whereof I have hereunto signed my name in the'presence of two subscribing witnesses.

LEONARD PHLEGER.

Witnesses:

CHARLES H. EVANS, ISAAC R. OAKFORD. 

